Hi,

Please refer to the code below:

Python:

class YourWizard(models.TransientModel):

    _name = 'your.wizard.model'

    _inherit = 'your.wizard.model'

    model_id = fields.Many2one(

        'ir.model',

        string='Modèle',

        compute='_compute_model_id',

        store=False

    )

    @api.depends_context('default_model_id')

    def _compute_model_id(self):

        for rec in self:

            model_str = self.env.context.get('default_model_id')

            model = self.env['ir.model'].search([('model', '=', model_str)], limit=1)

            rec.model_id = model

XML

<xpath expr="//button[@name='print_quotation']" position="after">

       <button name="%(dynamic_reporting.action_report_selection_wizard)d"

             string="Print Custom Report"

             class="btn-primary"

             type="action"

                context="{'default_model_id': model_id}"

        />

</xpath>

Hope it helps.

In the button, you set the model_id as char() and then in the model it is Many2one which is confusing. By default, when you set the default_field_name, odoo will set the field name (without the prefix default_) to that value. If you want to pass the model id, simply set the default_model_id:active_model.id, or use another name for the context.
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